Stardust-NExT, Revisiting Tempel 1 |
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Stardust-NExT, Revisiting Tempel 1 |
 Feb 15 2011, 06:27 PM
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#151
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Senior Member  Group: Members Posts: 1582 Joined: 14-October 05 From: Vermont Member No.: 530  |
QUOTE (S_Walker @ Feb 15 2011, 12:44 PM)  Fascinating images- much better than expected. Here's a processed version of the closest shot available at the moment. Your processed image has the closest thing I can see to detail at the impact site. 'course I'm not sure it's real. |
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Feb 15 2011, 06:30 PM
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#152
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 Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
kudos to the science team! not only for the successful flyby, but also for getting the phase right!
and the "mystery of the missing crater" is amazing instant science. we are privileged to have seen this live! |
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Feb 15 2011, 06:42 PM
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#153
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Junior Member Group: Members Posts: 94 Joined: 15-October 09 Member No.: 4979 |
QUOTE (stevesliva @ Feb 15 2011, 01:27 PM) Your processed image has the closest thing I can see to detail at the impact site. 'course I'm not sure it's real. Thanks. My processing steps were to crop the image to 548x548 pixels, upsample 50%, deconvolve using Richardson-Lucy (10 iterations, PSF of 0.8 pixels), and very mild wavelet filter. |
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Feb 15 2011, 06:44 PM
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#154
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Junior Member Group: Members Posts: 94 Joined: 15-October 09 Member No.: 4979 |
the "closest approach" image (n30037te01), processed using the same steps as mentioned previously.
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Feb 15 2011, 06:46 PM
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#155
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Member Group: Members Posts: 153 Joined: 14-August 06 Member No.: 1041 |
Supercomet!
'shudda made the probe out of Kryptonite |
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Feb 15 2011, 07:00 PM
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#156
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Junior Member Group: Members Posts: 68 Joined: 10-September 05 Member No.: 493 |
QUOTE (fredk @ Feb 16 2011, 12:14 AM) I'm wondering about the phase angle too. I was ready to declare an identification of the crater based on Phil's enhancement of this earlier image (see dark circularish ring inside my white circle): [attachment=23853:t1_n3003..._x_annot.jpg] But that dark ring seems to be invisible in the closer image. Could that be due to the change in viewing geometry? http://www.nasa.gov/images/content/516975main_n30036te01.jpg ? 
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Feb 15 2011, 07:03 PM
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#157
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 Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
This is my (very tentative) guess:
On the left/center, Deep Impact distorted version before/during impact. -------------------- I always think before posting! - Marco -
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Feb 15 2011, 07:08 PM
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#158
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Solar System Cartographer Group: Members Posts: 10153 Joined: 5-April 05 From: Canada Member No.: 227 |
Three views of the nucleus, oriented with south roughly at the bottom.
Phil
-------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Feb 15 2011, 07:12 PM
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#159
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 Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
The joy of science - valuable results whether you see what you expected or not.
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Feb 15 2011, 07:22 PM
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#160
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Junior Member Group: Members Posts: 68 Joined: 10-September 05 Member No.: 493 |
Tried to find the crater on three shots.
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Feb 15 2011, 07:35 PM
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#161
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Junior Member Group: Members Posts: 95 Joined: 5-September 07 Member No.: 3662 |
It's the lack of even an obvious albedo feature that surprises me the most. The impact threw up so much material, I'd have guessed it would leave more of a trace, even if it didn't make a significant crater.
The only thing that comes to mind is that if the material in the top tens of meters is well-mixed, there'd be no reason for significant albedo features due to the impact, since everything you dig up looks like the material already on the surface. If the surface is fairly soft, then it could've just been unable to retain a crater. (As was already mentioned, a footprint in sand might disappear overnight.) Jeff |
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Feb 15 2011, 07:44 PM
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#162
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 Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162 |
 We probably would not be able to recognize a new crater antipodal to the entry wound . . . |
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Feb 15 2011, 07:46 PM
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#163
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 Senior Member Group: Members Posts: 2082 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Amazing stuff, it's funny how the camera got better results now than with Wild 2, when it was a bit newer.
No obvious crater should narrow down the contest significantly... I remember a theory pre-impact that the projectile would punch a whole clean through the comet! (EDIT: Tasp beat me to that!) Fascinating views of the far side as well... a long, thin dark feature on both sides. |
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Feb 15 2011, 07:55 PM
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#164
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 Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Byron:
We have same idea! Quick and dirty attempt to find DI crater. Looks like big boulder from impactor images is gone.
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Feb 15 2011, 08:00 PM
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#165
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 Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
We've all been so busy hunting for the crater, I haven't seen anyone looking to see whether that flat tongue of material has expanded or retracted since DI saw it!
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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